image {
  resolution 640 480
  aa 0 2
  filter mitchell
}

camera {
  type pinhole
  eye -5 0 10
  target 0 0 0
  up -1 1 0
  fov 40
  aspect 1.3333
}

shader {
  name blue
  type constant
  color { "sRGB nonlinear" 0 0 1 }
}

shader {
  name red
  type constant
  color { "sRGB nonlinear" 1 0 0 }
}


object {
  shader red
  type box
}


object {
  shader red
  type sphere
  c -3 0 0
  r 1
}

object {
  shader blue
  type sphere
  c 3 0 0
  r 1
}